64474390

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^2\times {\mathrm{1279}}^1$

素因数の和:1428

約数の個数: 24

約数和(自身を含む): 117803520

約数和(自身を除く): 53329130

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 1279, 2558, 5041, 6395, 10082, 12790, 25205, 50410, 90809, 181618, 454045, 908090, 6447439, 12894878, 32237195, 64474390]

約数ペア:

[(1, 64474390), (2, 32237195), (5, 12894878), (10, 6447439), (71, 908090), (142, 454045), (355, 181618), (710, 90809), (1279, 50410), (2558, 25205), (5041, 12790), (6395, 10082)]